A7.1 - Selective solid electrolyte sensors for trace gas concentrations
- Event
- AMA Conferences 2017
2017-05-30 - 2017-06-01
Nürnberg, Germany - Band
- Proceedings Sensor 2017
- Chapter
- A7 - Gas Sensors IV
- Author(s)
- J. Zosel, M. Schelter, C. Vonau, U. Guth, M. Mertig - Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg, Waldheim (Germany)
- Pages
- 125 - 130
- DOI
- 10.5162/sensor2017/A7.1
- ISBN
- 978-3-9816876-4-4
- Price
- free
Abstract
The measurement of a variety of combustibles such as hydrocarbons (HC), carbon monoxide and hydrogen is an important task for the evaluation of combustion and industrial processes. Solid electrolyte gas sensors based on yttria-stabilized zirconia (YSZ) are suited for many of these applications due to their broad measuring range, short response time and outstanding long-term stability. Their selectivity for single analytes in complex matrices however often needs significant improvement. In
this contribution, different approaches for that task are described, which are directed on the electrode material, the electrochemical method of signal generation and the chromatographic pre-selection of analytes. It is shown, that every approach enables significant increase of selectivity without disturbing the other sensor parameters.